Make default logging level INFO (OMS-230)
Add an option to configure logging using a separate config file (OMS-230)
Clarify the final logging level after all configuration steps (OMS-230)
Cleanup: remove unneeded hack (OMS-230)
Only read additional config if it exists (OMS-230)
Fix critical issue with Twisted logging (OMS-230)
Merge pull request #161 from opennode/oms-230

Logging configuration from a separate file
Merge pull request #162 from opennode/oms-226

Changes to help debug issues like OMS-226
Use a local file log by default
Additional log messages (OMS-226)